Dough kneading and aerating roller.



PATENTED MAY 8, 1906.

W. LATHAM.

DOUGH KNEADING AND AERATING ROLLER.

APPLICATION FILED FEB.9, 1906.

4M119 a a q 1 D Dina A D d g a l UNITED STATES PATENT GFFIGE.

DOUGH KNEADING AND AERATING ROLLER.

Specification of Letters Patent.

Patented. May 8, 1906.

Application filed February 9, 1906. Serial No. 300,310-

To all whom it may concern:

Be it known that I, WOODVILLE LATHAM, a citizen of the United States,residing at the city of New York, in the county of New York and State ofNew York, have invented certain new and useful Improvements in DoughKneading and Aerating Rollers, of which the following is aspecification.

My invention relates to dough-kneading rollers; and it consists of adough-kneading roller of a form which is hereinafter fully described,and clearly illustrated in the drawings appended to this application.

The objects of the invention are, first, a more thorough kneading ofdough for bread, biscuit, or pie-crust than is possible with rollerssuch as have been used heretofore for this purpose second, to providesimple and inexpensive means for introducing atmospheric air into dough,so as to make the dough sufficiently and uniformly light and so as toavoid occasion for the use of yeast or baking-powders in the making ofbread.

The distinguishing peculiarity of my roller is that its surface isclosely studded, toothed, or embossed or is coarsely roughened. In otherwords, it is covered with a multitude of points or protuberances. Theaction of this roller is to make a great many small indentations orcavities in the surface of a sheet of dough. When these have been made,if the sheet of dough be folded upon itself (indented surface inside)and the roller be again passed over the dough with suitable pressure theeffect will be to seal up the airfilled cavities and to make a new setof indentations. By repeating this process over and over again more andmore air is imprisoned within the dough, and not only so, but the air isuniformly distributed throughout the mass. There is no limit to thequantity of air that can be introduced in this way except thateventually because of the extreme tenuity of the cavity-walls thebursting of the air-cells under the pressure of the roller gives escapeto as much air as a succeeding operation could add to the dough.

The roller of course can be made of various materials and of anyrequired dimensions. If of small size, it may with small masses of doughhave the general form of an ordinary rolling-pin and be operated by handin connection with a bread-board, or it may be one of the elements ofmachinery for kneading and aerating dough on a large scale.

The Figures 1 and 2, representing the roller in the general shape of arolling-pin, sufliciently illustrate the invention and can be readilyunderstood Without further explanation. The protuberances on the surfaceof the roller are preferably of conical form or else of the form of atruncated cone, because these easily enter the dough and are easilywithdrawn without dragging the dough after them and clogging the spacesbetween them; but I do not limit myself in this respect.

Having thus described my invention, illustrated the same, and explainedits operation,

what I now desire to secure by Letters Patent is the following:

1. In a dough-kneading roller the combination with a plain-surfacedroller of protuberances or projecting pins, substantially as described.

2. As an article of manufacture, a dough kneading and aerating rollerwith a studded or toothed surface substantially as described.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

WOODVILLE LATHAM.

I/Vitnesses:

BLANOHE L. OHAnwELL, MELVILLE E. DAYTON.

